Properties of the Number 61457

Sixty-One Thousand Four Hundred Fifty-Seven

Basics

Value: 61456 → 61457 → 61458

Parity: odd

Prime: No

Previous Prime: 61441

Next Prime: 61463

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 11 × 37 × 151

Divisors: 1, 11, 37, 151, 407, 1661, 5587, 61457

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111000000010001

Octal: 170021

Duodecimal: 2B695

Hexadecimal: f011

Square: 3776962849

Square Root: 247.90522382555798

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Number of Dyck n-paths all of whose ascents and descents have lengths equal to 1 (mod 9). A212368

a(n) is the least integer k such that the k-th, (k+1)-th, ..., (k+n-1)-th primes are congruent to 1 mod 4. A363016

Least n such that n consecutive values in A080378 equal 0; i.e., exactly n differences between consecutive primes are divisible by 4. A80380

Let S(n,k) denote the number formed by concatenating the decimal numbers 1,2,3,...,k, but omitting n; a(n) is the smallest k for which S(n,k) is prime, or -1 if no term in S(n,*) is prime. A262300

Squares whose reversal is also a square. A61457

Number of consecutive prime runs of 10 primes congruent to 1 mod 4 below 10ⁿ. A92663

Concatenation of the numbers from 1 to n but omitting 10. A262580